КАЛИЕВ ХЕКСАНИТРИТОКОБАЛТАТ
POTASSIUM HEXANITRITOCOBALTATE (III)
ГЕКСАНИТРОКОБАЛЬТАТ (III) КАЛИЯ
Синоними /Synonyms/: Fischer’s salt; cobalt yellow; cobalt potassium nitrite
IUPAC наименование /IUPAC name/: Potassium hexanitritocobalte (III)
Химична формула /Chemical formula/: K3Co(NO2)6
Молекулна маса /Molecular mass/: 452.26 g/mol
CAS № /CAS Nr./: 13782-01-9
Application:
Potassium hexanitritocobaltate (III) is a yellowish, crystalline powder, slightly soluble in water, insoluble in ethanol. It is used in the nuclear medicine and as a yellow pigment in oil and watercolor paints to color surfaces of glass, porcelain, and others.
CERTIFICATE OF ANALYSIS
Quantity: 200kg
Batch: KKN241012
Test date: 24.10.2012
Shelf life: 10/2017
| Nr. | Parameter | Guaranteed value | Batch value/ Typical value |
| 1. | Hexanitritocobaltate III potassium content (by cobalt), %, NLT | ≥ 98 | 98.8 |
| 2. | Potassium content, % | 24,5-26,5 | 25.2 |
| 3. | Content of the water soluble substances, %, NMT | ≤ 8.5 | 7.5 |
| 4. | Content of the pH solution with the content I%, pH, NLT | ≥ 4.5 | 5.59 |
| 5. | Loss at drying, %, NMT | ≤ 1 | 0.3 |
| 6. | Sodium content, %, NMT | ≤ 0.6 | 0.15 |
Packaging: 40 kg in cardboard drums
Stability and storage: 5 years when stored in a cool dry place, protected from direct sunlight
